Transifex is a cloud-based localization platform built to help you manage the translation and localization of your app, website, video subtitles, and more. It acts as a repository for your content (think GitHub for translation) and includes tools for developers to get that content into Transifex automatically. Transifex also provides translators a web interface to submit translations.

Crowdin is a localization management platform with all the features you need for agile localization. Get your app, game, web app, software and on fast and seamlessly translated into more than 300 languages.

Unbabel is breaking language barriers combining Machine Translation with Crowd Editing. First, state-of-the-art artificial intelligence software translates the text from source to target language. Tasks are assigned to editors who correct the texts, perfecting the translation.